Re: PROBLEM: in_atomic() misuse all over the place

[Pavel Machek]

On Wed 2009-01-28 00:10:37, Roger Larsson wrote:
> (resent, non html)
> 
> [1.] One line summary of the problem:    
> in_atomic() is used to select path of execution, most likely to suppress 
> warning logs when running a preemptive kernel.
> 
> [2.] Full description of the problem/report:
> 
> The problem is that in_atomic() only works on preemptive kernels...
> 
> Result: preemptive kernel warns about a potential deadlock in all kernels,
> developer silence with the help of in_atomic()
> bug remains in SMP/UP kernels...

I guess in_atomic() should be renamed to
unreliable_in_atomic... because it does not really reliably tell you
if you are in atomic section or not.

Or we could negate the logic and call it maybe_kernel_context()?

gfp_any() also needs a better
name. pick_right_gfp_if_you_are_in_kernel_or_softirq_context() sounds
suitable :-).

								Pavel
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